HI,
Welcome to HCM,
I read your query and i appreciate your concern regarding this issue.
These are not specific signs of
pregnancy.
To be pregnant, 2 criteria should be fulfilled:
1. Fusion of sperm with ovum to form a fertilized ovum.
2.
Implantation of the fertilized ovum in the
Uterus.
As per details your cycle is irregular so we can not comment on ovulatory days and there was no ejaculation as well.
You can wait till you get your periods.
If they are delayed more than three weeks, a Pregnancy test can be done to confirm it.
In case of pregnancy, it will give a positive result.
I will suggest you to avoid
unprotected intercourse if you do not want pregnancy.
In case of overdue of your cycle, go for pregnancy test and consult with your Gynaecologist.
Hope so it will be helpful.
You can write again in case of any query or follow up.
Wish you good health.
Regards