I draw money from 401k to buy house, but I make payment deducted from my paycheck, how can I file on income tax 2018,I didn't get Form 1099 R from Fidelity 401k.

[dmertz]

It sounds like you obtained a loan from your 401(k), not a distribution.  401(k) loans are not reported on your tax return unless you fail to make payments on the loan or you leave the company and the 401(k) plan reduces your balance in the 401(K) to pay off the loan.