Confused....

Can someone make a better clearing to me . I took clomid back in August , & ovulated but didn’t conceive so my period came right on cycle 28 , did it come because I didn’t have sex ? Or what . This cycle I took it again & ovulated & had sex on the days that we were suppose to . I’m at cycle day 27 today .. is there a chance I could be pregnant ? I’m 10dpo