Calculate menstrual cycle and ovulation date

I had my first child by cesarean section 8 years ago and got my period back 1 month after giving birth. Now, it's been more than 3 months since I had my second child by cesarean section and I still haven't had my period back. Both children are exclusively breastfed. Do I have any problems? How long after a cesarean section will my period return?

Hello doctor! I have menstrual disorders, for 2 months now I still haven't seen it. After going to a private clinic, they gave me medicine to drink to induce menstruation including: 1 pack of round white pills, 1 pack of daily birth control pills. The doctor instructed me to take the round white pills for 10 days, then stop taking the medicine and my period will come for 2-7 days. When my period comes on the 2nd day, I will take the daily birth control pills. But when I took the round white pills, I felt dizzy even though I had eaten. I took the 2nd pill and my period came, so I stopped taking the medicine. I went to the clinic where I was prescribed the medicine and asked, the doctor said the medicine would cause dizziness after taking it and told me to take the daily birth control pills as prescribed, and when I finished the medicine, come back for a check-up and continue treatment. I am very worried, maybe it is because I am stressed or have changed my lifestyle causing menstrual disorders. Will the medicine the doctor gave me have any effect? And will taking birth control pills regularly like that cause infertility? I hope the doctor can advise me, thank you doctor.

Hello doctor, I had sex 6-7 days before my period, I bought daily birth control pills but the pharmacist told me to take them after my period... I still haven't had my period, I'm so worried, doctor, please advise me!

Hello doctor. My test result is negative for Rubella IgM and positive for IgG (1189.3). Is my pregnancy okay? Thank you, doctor.

I just had my period from April 18 to 25 and last night (May 6) until this morning (May 7) I went to the toilet a total of 4 times. Plus the last time I went to the toilet, I used tissue to wipe and saw a little brown mucus coming out of my vagina, probably due to blood and vaginal discharge. Doctor, can you tell me if bleeding in the middle of my cycle is okay?

The doctor told me I have my period on the 28th of every month and it's clean for 7 days, the doctor told me what day of ovulation is it?