I had an abortion junee15 n 2 weeks later I had unprotected sex for about a month been having unprotected sex but yet I'm still coming on period irregular though one time it was 3 days, then 7 days and now on again could I be pregnant

Well, you didn't learn after the first abortion to use protection so you went and did it again...

Yes its possible... but you will have to wait about a month after you think it happened and take a test to find out.