Pregnancy after tubal ligation

Hey

Im not really sure where to post this.

I had a tubal after my daughter was born last year. I was bfing so I did have a period until Jan.

Since January ive had one every 29 days. Until now.

I had very very light spotting that came periodically for 2 days last week. Period was due the 1st.

Had sex several times during the month because I don't always ovulate.I have pcos and had to take clomid to get pregnant with my daughter.

Since the spotting my breast have been extremely sensitive. I've had back pain wanted more sleep been wanting to eat more often but less amount of food. I feel sick and have been sick after eating. Lot of pressure below chest bone.

I've heard you can still get pregnant. Could I be?